Sökning: "dipyridophenazine"

Visar resultat 6 - 8 av 8 avhandlingar innehållade ordet dipyridophenazine.

  1. 6. Some Aspects of Nucleic Acids Chemistry

    Författare :Edouard Zamaratski; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bioorganic chemistry; Bioorganisk kemi; Bioorganic chemistry; Bioorganisk kemi; bioorganisk kemi; Biorganic Chemistry;

    Sammanfattning : This thesis is divided into two parts based on a total of 8 papers: Part 1: Synthesis, physicochemical and biochemical studies of chemically modified oligonucleotides and their duplexes and triplexes. Potency of the chromophore conjugated DNA oligonucleotides as antigene and antisense gene repressors was evaluated. LÄS MER

  3. 7. Peptide nucleic acid conjugates as artificial ribonucleases : Cu2+ and Zn2+-dependent PNAzymes

    Författare :Olivia Luige; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Synthetic modified oligonucleotides are gaining momentum as powerful therapeutic tools used in the treatment of life-threatening diseases. Degradation of disease-related RNA sequences is one of the goals achieved with oligonucleotide therapeutics, albeit the currently available technologies rely on the recruitment of endogenous enzymes, RNase H or RISC, limiting the chemical architecture of oligonucleotide drugs. LÄS MER

  4. 8. Aspects of Antisense and Antigene Chemistry of Oligonucleotides Tethered to Intercalators

    Författare :Dimitri Ossipov; Jesper Wengel; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bioorganic chemistry; oligonucleotides; intercalators; ruthenium complexes; RNase H cleavage; photocross-linkage; Bioorganisk kemi; Bioorganic chemistry; Bioorganisk kemi; bioorganisk kemi; Biorganic Chemistry;

    Sammanfattning : Synthetic and physicochemical studies on appropriately functionalized ODN-conjugates have been performed to evaluate their abilities to act as antisense agents against RNA or as intramolecular DNA cross-linking agents. Intercalating aromatic systems [phenazine (Pnz), dipyridophenazine (DPPZ)] and metallointercalators such as Ru2+(phen)2(DPPZ) and Ru2+(tpy)(DPPZ)L [where L = chemically or photochemically labile ligand, phen = phenanthroline, tpy = terpyridine], which are covalently tethered to the oligo-deoxynucleotides (ODNs), have been chosen for this purpose. LÄS MER